SMSCom Heavy Duty Fan Controller - Max Load 6.5A | 1500W
Brand: SMSCOMDownload PDF brochure
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- SMSCom – Very reliable and great value-for-money
- Plugs straight into a mains socket
- Wide adjustment fan-speed control
- Upgrade-able with the addition of the forthcoming plug-in Smscom thermostat (not included)
- Can supply up to 1500 Watts (6.5 Amps)
Please note: though digital fan speed controllers (like this one) are a very cost-effective solution, they may generate a humming sound. This is an unavoidable consequence of using 'pulse width modulation' to regulate fan output. We highly recommend SMSCom Hybrid Fan Speed Controllers, which instead use heavyweight transformers and run completely silent.
-  x SMSCom Heavy Duty Fan Controller - Max Load 6.5A | 1500W
How the SMSCom Plug-in Fan Speed Controller Works:
The SMSCom plug-in fan speed controller is a great little piece of kit that allows you to control the speed of your in-line duct fan. The unit plugs directly into a mains outlet and your extraction fan plugs directly into the socket located on the front of the unit. The control on the front of the unit allows the user to manually adjust the speed of the fan and thereby control the rate of extraction.
A higher rate of extraction during summer months is generally good as it will reduce the temperature and humidity in the grow-space. However, during winter months, a fan running at full speed may reduce your grow-space temperature too much. The SMSCom fan speed controller allows you to reduce the fan speed, allowing your grow-space to remain at a good temperature while simultaneously reducing fan and duct noise.
SMSCom will soon be releasing an optional thermostatic controller (not included) which simply plugs into the small jack socket on the top of the unit. When the thermostatic controller is plugged in, the control on the fan speed controller sets the minimum constant fan speed while a second control on the thermostatic controller allows you set a “maximum” temperature which when reached will increase the fan speed to full until the temperature in the grow-space has dropped back down again.
Using the SMSCom Plug-in Fan Speed Controller
Plug the fan speed controller into a mains socket and then plug your extractor fan into the socket on the front. When the mains socket is switched on, your fan will begin to run. Use the control on the front of the SMSCom fan speed controller to increase or decrease the fan speed as required.
Remember, the fan speed always needs to be high enough to remove adequate amounts of stale air from your grow space, even when the room is cold. If the fan speed is too low, there may not be enough fresh air exchange to replenish CO2 for optimal plant growth. Also, having your fan speed too low may not keep the humidity down enough for good plant growth and to reduce the chances of mould or rot during flowering.
To use with the optional SMSCom thermostatic controller, install the fan speed controller as described and then plug the thermostatic controller into the jack socket on the top. Set the minimum fan speed by using the control on the front of the fan speed controller. Place the thermostatic controller in an appropriate place in your grow-space and set the control on the front of it to the temperature at which you want the fan speed to run at maximum. When that temperature is reached, the fan speed will be increased to full until the temperature in the grow-space has been reduced.
The SMSCom Plug-in Fan Speed can adjust the speed of fans with a maximum power consumption of 1500 Watts (current draw of 6.5 Amps). However, it should never be used to control the speed of circulation type fans which generally have their own speed control. Using the SMSCom fan speed controller to control a circulation fan will invariably burn out the controller or the fan itself.
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